Masahiro "Jackal" Oishi
| First Name : | Masahiro |
| Last name : | Oishi |
| Nickname : | Jackal |
| Height : | 5'6" (171cm) |
| Weight : | 132 lbs (60 kg) |
| Birth Date : | 1968-11-29 |
| City : | Tokyo |
| Country : | Japan |
| Record : | 17 - 5 - 0 (Wins - Losses - Draws) |
| Wins : |
1 TKO (Eye Injury) (5.88%) 2 TKO (Punches) (11.76%) 1 Technical Submission (Armbar) (5.88%) 1 Decision (Unanimous) (5.88%) 1 Technical Submission (Kimura) (5.88%) 5 Draw (29.41%) 1 Submission (Rear Naked Choke) (5.88%) |
| Losses : |
1 Decision (Majority) (20%) 1 Decision (Unanimous) (20%) 1 KO (Punches) (20%) 1 Submission (Armbar) (20%) 1 Technical Submission (Guillotine Choke) (20%) |
| Association : | Gracie Jiu-Jitsu |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Win | Paul McVeigh | TKO (Punches) | GCM - Cage Force 6 | Apr 5, 2008 | 2 | 3:13 Sec |
| Win | Taiyo Nakahara | TKO (Eye Injury) | GCM - Cage Force 4 | Sep 8, 2007 | 1 | 3:55 Sec |
| Win | Wataru Inatsu | Submission (Armbar) | ZST - ZST.13 | Jun 10, 2007 | 1 | 2:59 Sec |
| Win | Kentaro Imaizumi | Draw | ZST - ZST.12 | Feb 12, 2007 | 2 | 5:00 Sec |
| Win | Masayuki Okude | Submission (Reverse Triangle Choke) | ZST - ZST.8 | Nov 23, 2005 | 2 | 0:44 Sec |
| Win | Jin Akimoto | Technical Submission (Armbar) | Shooto 2005 - 7/30 in Korakuen Hall | Jul 30, 2005 | 1 | 3:14 Sec |
| Win | Eugenij Konkov | Draw | Shooto Lithuania - Chaosas | Apr 7, 2005 | 0 | |
| Lost | Remigijus Morkevicius | KO (Punches) | ZST - Grand Prix 2 Final Round | Jan 23, 2005 | 1 | 3:13 Sec |
| Win | Hideo Tokoro | Decision (Split) | ZST - Grand Prix 2 Final Round | Jan 23, 2005 | 3 | 3:00 Sec |
| Win | Stephen Gillinder | Submission (Armbar) | ZST - Grand Prix 2 Opening Round | Nov 2, 2004 | 1 | 0:31 Sec |
| Lost | Jeff Curran | Technical Submission (Guillotine Choke) | ZST - ZST.6 | Sep 12, 2004 | 1 | 0:44 Sec |
| Win | Takahiro Uchiyama | Submission (Armbar) | ZST - ZST.5 | May 5, 2004 | 1 | 4:31 Sec |
| Lost | Hideo Tokoro | Submission (Armbar) | ZST - Grand Prix Opening Round | Nov 23, 2003 | 1 | 3:13 Sec |
| Lost | Ryota Matsune | Decision (Majority) | Shooto - 8/10 in Yokohama Cultural Gymnasium | Aug 10, 2003 | 3 | 5:00 Sec |
| Win | Hisao Ikeda | Draw | Shooto - Treasure Hunt 10 | Sep 16, 2002 | 3 | 5:00 Sec |
| Win | Yoshinobu Ota | Submission (Rear Naked Choke) | Shooto - To The Top 2 | Mar 2, 2001 | 2 | 2:48 Sec |
| Win | Masaki Nishizawa | TKO (Punches) | Shooto - To The Top 1 | Jan 19, 2001 | 1 | 4:12 Sec |
| Win | Hiroyuki Abe | Draw | Shooto - Renaxis 4 | Sep 5, 1999 | 2 | 5:00 Sec |
| Win | Yoshihiro Fujita | Technical Submission (Kimura) | Shooto - Las Grandes Viajes 2 | Mar 1, 1998 | 1 | 2:40 Sec |
| Lost | Hisao Ikeda | Decision (Unanimous) | Shooto - Reconquista 3 | Aug 27, 1997 | 2 | 5:00 Sec |
| Win | Yoshiyuki Takayama | Decision (Unanimous) | Shooto - GIG | Jun 25, 1997 | 2 | 5:00 Sec |
| Win | Hisao Ikeda | Draw | Shooto - Vale Tudo Junction 2 | Mar 5, 1996 | 3 | 3:00 Sec |